Pile-pulling device



July 2, 1929. P, PETERSEN v 1,719,021

PILE PULLING DEVICE Filed Sept. 28, 1927 .a 2- I I i L \n u I I 30 ROBE/377' F. P5 75/?5 EM BY 0 i ,r.' L...

Patented July 2, 1929.

UNITED STATES PATENT OFFICE.

ROBERT I. PETERSEN, OF PHILADELPHIA, PENNSYLVANIA, ASSIGNOR TO HENRY W. HORST COMPANY, OF FIlIILADELlEI-IIA, PENNSYLVANIA, A CORPORATION OLE ILLINOIS.

PILE-IUIJLING DEVICE.

Application filed September 28, 1927. Serial No. 222,442.

My invention relates to a new and useful pile pulling device, whereby piling which has been driven into the ground to a relatively great depth, may be expeditiously and economically extricated or pulled out, without the exertion of excessive force or power.

When piling is driven deep into the ground, and more particularly when the planks or plates comprising such piling are provided with interlocking edges, a seal? is formed between said edges, due to the rust or dirt which accrunulates over a long period of time and which cements or joins the same thus greatly increasing the dilliculty of removing or pulling out such piles, since, in

addition to overcoming the resistance due to the frictional engagement of the pile with the ground, it is also necessary to break the lock or seal thus formed between the ad jacent contiguous piles, thereby greatly increasing the difliculty in pulling out or ex tricating the piles and necessitating the employment of additional force and power.

The object of my invention is to provide a pile pulling device whereby the upward pull exerted on a pile being extricated is simultaneously translated into downward pressure exerted on the adjacent, contiguous pile, thereby breaking the seal or look formed between the contiguous, interlocking edges of said piles and facilitating the removal or pulling out of the same. i A further object of my invention is to provide a pile pulling device which. will be simple in construction but at the same time, eiiicient. light and durable, all of which characteristics are particularly essential in movable, or field equi 'nnent of this character. To the above ends, my invention consists of an auxiliary mast,'adjustubly carried by and interposed between the swinging boom oi a derrick or other hoisting machine and the pile to be pulled. out or extricated, upper and lower pulley blocks carried by said auxiliary mast and having operative relation with the reeling drums of said hoisting machine, the lower of said pulley blocks being adapted to be detachably secured to the pile to be pulled out, while the lower end of said auxiliary mast is adapted to straddle and exert a downward pressure on the at a novel at wi'ierelnf the upper and lower ends thereof are greatly strengthened and reinforced and whereby its adjustment and operation are greatly l'acilitated.

My invention further consists in a novel manner of securing and collocating the hoisting pulleys with relation to the hoisting machine and the auxiliary mast to effect the object of my invention.

My invention. further consists in various other novel features of construction hereina'liter described and claimed.

F or the purpose of illustrating my invention I have shown in the accompanying drawings one term thereof which is at present preferred by me, since the same has been found in practice to give satisfactory and reliable results, although it is to be understood that the various instrumentalities of which my invention consists can be variously arranged and organized and that my invention is not limited to the precise arrangement and organization of the instrumentalities as herein shown and described.

Referring to the accompanying drawings,

Figure 1, represents a view in side elevation of a pile pulling device embodying my invention. a

Figure 2, represents an end elevation of the same.

Figure 3, represents on an enlarged scale, a view showing in details the construction of the lower portion of the mast seen in Figure 1.

Figure l, l'OPl'GSQIltS a fragmentary plan view of the conventional piling to be pulled out by the device eml'iodying my invention.

Referring to the drawings, in which like reference charz'mters indicate like parts, 1 designates the swinging boom of a hoisting machine, to the uppermost end of which is secured the grooved wheel or pulley 2, over which passes the wire or other flexible hoist ing cord 3 leading to the hoisting drums of a hoisting machine not shown. The front portion l of the wire 3 passes over the movable pulley block 5 and stationary pulley block 6 and has its end secured to one or the other of said pulley blocks as at 7. 8 designates a second wheel or pulley over which passes the wire S) which carries the auxiliary mast 10 in an adjustablemanner at any do sired it above the ground. ll 1 st 10 watered "witlil.

i at its ing plate and with the end angle irons 12 19 is employed on one side of the mast 10 and is held in place by the bolts 20, there being an upper reinforcing plate 21 common to the upper edge or surface of the mast 10 and the spacing block 19 as will be understood from Fig. 1. An inverted Ushaped bracket 22 is superimposedupon and encases the top of the mast 10 and the spacing block 19, and is socured in position by the common bolts'18 and hereinbefore referred to. To the shorter side 23 of the bracket 22 is secured the bracket 24 which supports the pulley block 6, the

' spacing block 19 thus serving to maintain v means.

said pulley 6 in offset spaced relation with respect to themast 10. The lower pulley block 5 is provided with the inverted U- shaped bracket'25 which is adapted to be socured to the pile 26 by the bolts 27, passing through the holes 26 and retained in position by the cotter pin 29 or by any other suitable In Figure 4: I have shown a fragmentary plan view of the conventional piles 16 and 26,

which are provided with the jaws 30 which interlock with each other when the piles are driven into the ground. Due to rust and dirt accumulating in and about the contacting aws 30 the same are sealed or cemented together thus more firmly securing the piles to each other and greatly lncreasing the ditliculty in extraction or pulling out of the piles.

The. operation of the device is as follows The pulley 5 is first secured to the pile 26 to be pulled out and the mast 10 is made to straddlev the next, adjacent pile 16 so that when an upward pull is exerted on the pulley 5 and pile 26, a corresponding downward pressure is exerted by the mast 10 on the adjacent contiguous pile 16, thus tending to break the seal or lock formed by the rust and .dirt accumulating upon the joining or cementing the interlocking jaws 30 of the adjacent piles 16 and 26, and facilitating the pulling out of the pile 26.

then the pile 26 has been pulled out, the mast 10 is made to straddle the next adjacent pile 31 and the pulley 5 is now secured to the pile 16 which in turn is pulled out and so on. Thus the force exerted in pulling out one pile is simultaneously employed to facilitate the pulling out of the next succeeding, adjacent pile, without the exertion of any additional force or power. I

The reinforcing plates 17 and 21 and the bracket 22 onthe top of the mast 10 and the reinforcing plates 15 and angle irons 12 on the lower end thereof, permit of the use of wooden mast 10 which will not break or be otherwise damaged by the excessive pressure to wnich it is subjected, thus combining the advantages of lightness and strength. By the collocation of the pulleys 5 and6 with respect to the mast 10 and of the mast 10 with respectto the hoisting machine and the piling. 1 am enabled to employ the force developed by the hoisting machine to better advantage since the same force exerted upwardly on one pile is also exerted downwardly on the adjacent contiguous pile and thus facilitates the pulling out of said piles.

It will now be apparent that I have devised a novel and useful construction which cmbodics the features of advantage enumerated as desirable in the statement of the invention and the above description and while I have in the present instance shown and described the preferred embodiment thereof which has been found in practice to give satisfactory and reliable results, it is to be understood that the same is susceptible of modification in various particulars without departing from the spirit or scope of the invention or sacrificing any of its advantages.

Having thus described my invention, what I claim as new and desire to secure by Letters Patent is:

1. Means for pulling sheet piling, comprising a mast having a shoe adapted to straddle the top of the pile adjacent the pile to be pulled, upper and lower pulley blocks suspended on one side of said mast, and means to connect the lower block to the top of the pile to be pulled, said mast and blocks being adapted to be operatively connected to a crane or the like.

2. Means for pulling sheet piling, comprising a mast having means at its upper end to support a pulley block alongside of said end and means on its lower end to straddle the pile adjacent the one to be pulled. a second pulley block having means to attach it to the pile to be pulled, means to attach the top of said mast to a crane or the like, and a. cable operatively connecting said pulley blocks to said crane.

3. Means for pulling sheet piling, comprising a mast having a shoe adapted to straddle the top of a pile, reinforcing side plates at the top of said mast, a spacing member secured to one side of the top, a U-shaped plate on the top of said mast embracing said spacing member, an upper pulley blo k suspended from one leg of said Ushaped plate below said spacing member. a lower pulley block adapted to be attached to the pile to be pulled, and a hoisting cable operatively connected to said pulley blocks.

1. Means for pulling sheet piling, comprising a mast having a shoe to fit over the top of a pile adjacent to the one to be pulled,

reinforcing side plates having lateral extensions on the upper end of said mast, a spacing member secured to the side of said upper end between said extensions, a reinforcing plate on the top of the mast and-having a downward extension enclosing said spacing meniber, a pulley block suspended from said doWn- Ward extension, a second pulley block suspended froin the first block, and means 011 said second block to detachably connect it to the pile to be pulled, said mast and blocks being adapted to be operatively connected to a hoisting machine.

ROBERT P. PETERSEN. 

